[Elecraft] Re: K1 1408 is underway...80 vs 170 kHz VFO span

[Morrow, Michael A.]

Jess wrote:

Can anyone comment on the plus or minus attributes of 80khz vs 150 khz of
band coverage? It would seem that the only reason to select 150 would be for
WWV reception on 30 meters or to listen to the novice portion of 40? Jess 
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I've used the 170 kHz (which is actually what you'll get) option for two
years on K1 #175.  I wouldn't have it any other way.  Tuning rate is still
good (about 17 kHz/turn) and is remarkably linear IF you have a 100 kohm
resistor connected from the hot side to the wiper on the VFO potentiometer.
I believe the later models of the K1 come with this resistor as standard.
The advantages of 170 kHz span are:
(1)  Full coverage of the 40m CW band, PLUS some overlap into the first 20
kHz of the phone band, just in case you needed to try a cross-mode contact
(The K1 receives in LSB mode).
(2)  Almost full coverage of the 15m CW band (had you chosen that over
17m)..
(3)  10 MHz WWV coverage, as you mention.
Reason (1) alone is enough for me.  There's a lot of activity there (and
also a fair amount in the Novice portion of 15m when a contest is raging).
73,
Mike / KK5F